You searched for: “biosafety
biosafety
The maintenance of safe conditions in biological research to prevent harm to workers, nonlaboratory organisms, or the environment.
Word Entries containing the term: “biosafety
biosafety levels, BSL
A classification system used to indicate the safety precautions required for those investigating microorganisms; especially, viruses known to be dangerous, or lethal, to those exposed to them.

There are four BSLs, with BSL-4 requiring the highest level of security.